Unit 2: Earth’s History, Evolution, Genetics
Unit 2: Earth’s History/Evolution/Genetics:
1) Draw/Create a diagram to show the Law of Superposition that includes both layers and fossils:
? Label the layers from youngest to oldest
? Explain, using the fossils or layers in your diagram, both absolute & relative age
2) Draw a labeled picture of the 4 main layers of Earth:
? Explain what caused the Earth’s interior to be separated into 4 main layers.
3) How do ice cores, tree rings & index fossils provide valuable information about the past?
4) Analyze the diagram above (Copy the diagram above into your slides):
? Identify the letter that represents each of the following features: – Intrusion: – Unconformity: – Fault:
? Explain what effect these physical features would have on interpreting the events of the Geologic Time Scale.
5) Draw a 4-square diagram with the definition and an example for each of the 4 Principles of Natural Selection
? Overproduction, Variation, Adaptation, Selection
6) Describe how each of the following is Evidence for Evolution:
? Fossils, Comparative Anatomy (homologous, analogous, vestigial organs), embryology, genetic similarity (DNA)
? What is the difference between phenotype and genotype? How can they both be used to determine how related organisms are?
7) Re-write (literally just copy) the following statement that describes the root cause of evolution, and then answer the 2 questions that follow:
? Environmental change leads to adaptation genes mutate causing variations those with the best variations of traits are selected to survive and produce offspring again with the new adaptations populations evolve
? 7A Based on the statement you just wrote, expand it to include what speciation is and how it occurs.
? 7B What are genetic errors called? Explain how they can be an advantage or disadvantage. Extra Credit: What is the science of biological classification called?
? What are the levels of classification (in order) for all living things on Earth
? How can comparing the biological classifications of 2 organisms tell you how related they are?
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